Rotary explosive-engine.



No. 746,870. PATENTED DEC. 15, 1903. A. MQGAHON.

ROTARY EXPLOSIVE ENGINE. APPLICATION FILED DEG. 17, 1902.

H0 MODEL.

Witnesses jnvenfor:

65 v c-Mcu/L Q5 (fa/Z M- I L 1% MM,

A [form e52.

UNITED Patented necerhher 15, 1903.

Cr tics:

ROTARY ExeLosivE-Eucms.

PECIFIGA'IION forming part of Letters Patent NO. 746,870, dated.December 15, 1 903. Application filed December l7, 1902. Serial No.135,644} (No model.) I

To all whom it may concern.-

Be it known that I,- ALEXANDERMGCAHON,

. a citizen of the United States, residing at St.

I each revolution of the hub as the sparking-.

Joseph, in the county-of Buchanan and State of Missouri, have inventedcertain new and useful Improvements in Air and Vapor RotaryExplosive-Engines; and I do declare the following to bee. full, clear,and exact description of the invention, suchas will enable othersskilled in the art to which it appertaihs to make and use the same,reference being bad to the accompanying drawings, and to the letters ofreference marked thereon, which form a part of this specification. I

The object of my device is to provide an; air and gasolene rotaryexplosive-engiue in which by means of pockets, plungers, and provisionfor striking electric. sparks and a} feed-pipe and ports located withinthe-hub the engine supplies its pressure 'tankwithg fresh air, mixes itwith gasolene,"-drivesthe: '1'

mixed air into a chamber of the engine," at which chamber threeexplosions occur during points in each hub-pocket separate and cause anelectric spark, thus securing great power from a given amount of, fueland constituting an engine with a hub that is aself-fee'der.

In the drawings, Figure l is a view of a fresh-air pressure-tank, agasolene-t-ank, the mixing-bulb, and their connections and an end viewof the stationary axle, revoluble hub, the chambers, pockets, plungersand plunger-slides, and the electric sparkers, the end plate of theengine being removed to permit an interior view. Fig. ,2 is a verticalcross-section of the engine and its pressure and gasolene tanks, themixing-bulb, and connections in elevation, the feed and air orslot wayoutside connections, the paddle-fan and its gear, and the drive-wheelfor starting the engine. Fig. 3 is a detail end view of the stationaryaxle, the air and feed passages or slotways in the; axle, and the portsin the hub,

leading to the axle. Fig. is a detail of portions of the engine endplates, the hub and hub-rim, the electric plate out-side the engine, thesparker-pin .in a pocketof the hub, the connection between saidsparkerpin and plate, the wire attached to the plate, and the.

wire screwed to the engine. Fig. 5 is a detail of a section of the hub,a plunger and its slide,

' Similarletters refer to'similar par i out the several views.

ingtheir position as the former has been carried down the slide by itsplunger into position to contact. with and drag on and oft the latterfor the purpose of striking a spark to ignite the mixed'fresh air andgasolene inthepocket and cause au explosion; and Fig. 6 is a detail of asection-pf the hub, an end plate,

its guide, and the pin and coil-spring which operate to close theguide-passages at the indent of the outer rim of the engine as a plungerpasses through and out said passage-ways from one chamber to-the other.ts through;

In the drawings, A

is theouter rimvof the engine, having an abutment A at its top. V

;-B is a stationary axle.

ach'amber for mixed 'air and gasolene.

gers.

d is a pipe through which D, a pressuretank provided with a safety-valve(1', receives a supply of fresh air from chamber D when the hub andplungers are in motion.

His a gasolene-tank provided with a cap it is a hub, D a fresh-airchamber, and E F F are plunger-slides, and F F the plun tween fresh-airpressure-tank D and pipe H atapoint below throttle-valveh' to permitfresh air from tank D to pass into bulb I andmix with the gasolene. 1

J is arpipe having a throttle-valve J and extending from fresh-airpressure-tank D to' chamber E to supply air for starting the mechanism.

K isan air-slotway in stationary axle B, extending along the peripheryof the axle. This slotway is provided at one end with a pipe K, whichpasses up outside the engine and connects with the bnlb-baseohtlet I),through which it receives mixed'air and gasplen'e from bulb I andtransmits and "feeds'it through slot K and into the pockets L I: throughports f f as the port of each pocket is revolved over said slotway.Pockets-LL are also provided with ports e e, and as each of these portsis revolved past the mouth of bulb-base outlet b said outlet also feedssaid pockets through said ports with air and gasoone.

M M, Fig. 2, are the end plates of the .en-

stationary. :5 O Oare metal plates insulated away from the engine. 0' O"are wires adapted for connection with any suitable storage battery.

P P. are sparker-points in pockets L L, and P P are similarsparker-points on the inner Said connecting; plates and the wire thereonare suitably in-; sulated away from the machine, as 'are also theconnections between the plates and the "sparker-points P P in thepockets. The other sparker-points, P P, are screwed into the in-Whenever these :0 ends of plungers F F.

ner ends of the plungers. two sparker-points come in contact, a circuitis formed, the engine and wire 0 being used as a positive and theinsulated wire Oas a. the only point of connection being two sparkerscome in 'co'nta'ctnin a; pocket, which contact can only occur at theupper portion of mixed air 'and'Jgasolenecham-- ber E, where, by reasonof the incline in the negative,

.where the 5 guideway, the plunger as it passesdraws its 'sparker downuntil .its point drags on and oil sparker-point P, causing an electricspark'as they separate,' .which ignites the mixed air and gasolzene inthat pocket, resulting in an 0 explosion that drives the plungersforward.

, Q is an airway in the periphery of stationary axle B upon the sideopposite feed-slotway K, and Q is an air-pipe forming'connection with anend of said airway.

R is a paddle-fan run by rubber frictiongear R, connected with an end ofhub O for the purpose of blowing fresh air into pipe Q and airway Q andkeeping pure air in pockets L L and also fresh 5o culation being securedthrough escape-ports S S. To prevent fresh air from chamber D or vaporfrom chamber guideways m m in the end plates, a pin V, with coil-springV, is set at each end of each 5 of the guideways. As each plunger passesthrough the guideways it pushes thesepins power of the coil-spring.drives its pin back, thus closing the guideways against the pits- 6osage. of air or vapor. Y

The tanks being provided with their supply of fresh air and gasolene, inorder to start the engine it is only necessary to open throttlevalves 2and h, thus permitting fresh air and gasolene to pass freely intomixing-bulb I, whence, having become mixed, the process offlowing orseeping through the channels alair in chamber D, cir-,

E passing throughready described into, the pockets begins. Valve J inpipe J is then opened, permitting fresh airto be forced frompressure-tank D into that portion of chamber E that is abovethat-plunger which at the time is in the upper half .of said chamber.This pressure of air forces said plunger-downward, thereby putting inmotion all the revoluble mechanism;- Owing to the incline of guideway min this upper portion of said chamber, as the plunger is pushed fartherdown it passes farther out of its slide'F until its sparker-point Ptouches sparker-point P in the pocket, and

as the hub revolves its plunger sparker' point drags on and 01f thepocket sparker-point,

causing an electric spark "as they separate. The air'and gasolene inthat pocket is instantly ignited by the-sparkand'an explosion at onceoccurs. Throttle-valve J in pipe J may then be turned off, stopping afurther flow through it of fresh air from the pressuretank. In themeantime ascending plunger F in the upper part of opposite fresh-airchamber D is driving fresh air up through pipe d into pressure-tank'D'.After the explosion just described occurs the plunger moves on down toair-escape ports S S,through which the burned v'apor passes out of theem gine. As the hub is revolved paddle-fan R constantly blows fresh airthrough air-pipe Q into airway Q in stationary axle B and thence throughhub-ports ff into the hubpockets. The air passes thence out of thepockets through outer ports e e into chamber E and thence out throughsaid escape-ports, leaving'nothing behind but fresh air. Every time aplunger gets past said escape-ports the escape-ports and fresh-air-fe'edports are all cut off. The plunger as it ascends chamber D presses theair that isabove it in said chamber up into pressure-tank D through pipe(1. It will beseen that as a plunger is moving down the incline inchamber E there is a decreased leverage on the plunger that is passingup'chamber D, compressing the fresh air in said chamber and pushing itup into the pressure-tank, and economy of power is thereby secured.

While I have not shown or described a water-jacket, it is quite evidentthat one may beused with my device and that changes may be made in theforms and arrangements described "herein' without departing from thescope of the inventionl What I claim, and desiretose'cureby Let- I torePatent, is away; but the instant the plunger passes'the' 1. In a rotaryexplosive-engine the combination of a fresh air chamber and'a-fresh-airpressure-tank'anda connecting-pipe, a mixtn re-chamberand a pipeconnecting the pressure-tank therewith, a 'gasolene-tank and -amixing-bulb and connecting and intersecting gasolene and fresh-airpipes, leading into said bulb, an outlet-pipe at the base of the bulb, a

stationary axle and a hub adapted to be revolved thereon, plunger-slidesin said hub and. plungers operating therein, end plates across theslotway, ports at the periphery of the hub forming connection betweenthe pockets and engine-chambers and the bulb-outlet, the mixed fresh airand gasolene being thus transmitted into the pockets as the respectiveports between the pockets and chambers are revolved over said outlet,metal plates and wires having storage-batteryconnection,thesparker-points to cause explosions as they separate andthe circuit is broken, the expansion caused by said explosions drivingthree charges of fresh air into the pressure-tank at each revolution ofthe hub, an airway in said axle and its blowpipe and paddle fan andgearing, the exhaust for the burned vapor, pins and their springs forclosing the passages in the guideways between the fresh-air andmixed-air chambers, and the valves, substantially as shown anddescribed.

2. The combination with a rotary explosiveengine having thereforfresh-air and mixture chambers, end plates provided with plungerguidesat their peripheries, a rotary hub having slides with plungers thereinand means for rotating the hub, of 'pins operating in said guides ateach end of the passages between fresh-air and mixture chambers andsprings for driving said pins into the guides as each plunger passes by,thereby closing said passages against the exit of air or vapor said fromone chamber to the other, substantially as described and for the purposespecified.

3. The combination with an engine rim and end plates and its hub,.plungers and plungerguide, the chambers and hub -pockets and means forrevolving the hub, of a stationary axle in said hub, an airway extendedlongitudinally in the periphery of said axle, a paddle-fan and itsrubber friction-gear, a pipe having connection at an end of said airwayand provided with a mouth at the paddle-fan, and the ports in the hubcreating, as the hub revolves, an air-conduit from said pockets to saidpaddle fan, substantially as described and for the purpose specified.

4. In a rotary explosive-engine in combination with the mechanism forsupplying, mixing and distributing air and gasolene, a stationary axle,a revoluble hub thereon, the pockets within and chambers inclosing saidhub, the plungers operating in the hub, the connecting plates and wiresadapted to connect with a storage battery, a sparker-point in eachpocket, a sparker-point on the inner end of each plunger, saidsparker-points being adapted to contact as each plunger passes down itsguideway in the upper part of the mixed-air chamber thereby making acircuit,

emitting a spark when separated and cansing an explosion that forces itsplunger onward revolving the hub, substantially as described and for thepurpose specified.

In testimony whereof I aifix my signature in presence of two witnesses.

ALEXANDER MGCAHON. Witnesses:

ANDY B. KERR,

E1). SAMPLE.

